* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

ul {
  list-style: none;
}

.wrapper {
  position: relative;
  width: 500px;
  height: 350px;
  background-color: pink;
  margin: 100px auto;
  overflow: hidden;
}

.img_wrapper {
  position: absolute;
  top: 0;
  width: 0;
  width: 700%;
  height: 350px;
}

.img_wrapper>li {
  float: left;
  width: 500px;
  height: 350px;
}

.img_wrapper>li>img {
  width: 500px;
  height: 350px;
}

.wrapper>a {
  position: absolute;
  top: 50%;
  width: 35px;
  height: 35px;
  margin-top: -17.5px;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 3;
  display: none;
}

.prev {
  left: 0;
  background: url("") no-repeat center;
}

.next {
  right: 0;
  background: url("") no-repeat center;
}

.circle {
  position: absolute;
  display: flex;
  justify-content: space-between;
  align-items: center;
  bottom: 10px;
  left: 50%;
  background-color: rgba(245, 245, 245, 0.4);
  padding: 2px 5px;
  border-radius: 5px;
}

.circle>li {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid white;
  margin: 0 3px;
  cursor: pointer;
}

.current {
  background-color: white;
}